Hi,
I've already got ideas for VPSs, proxies, and how to deal with this in general. If you send me a link to the websites, I should be able to provide a sample file.
On a more personal note, I am a German (so we could continue in German if you prefer) Dev with 5 years of experience. Nowadays, I spend a lot of time working with selenium and web scraping in general.
This is also something you can see on my blog (See my Profile --> Portfolio), where I frequently write articles about Bots and similar topics. For example, my "How to Make Selenium Undetectable and Stealth" guide is currently probably the most comprehensive public resource on how to hide Selenium.
As a result, you are in really capable hands on this subject. (Also, don't get scared away by my currently 0 Projects on my profile^^ This isn't my first freelance project, just the first time using freelancer.com for this :) )
Please contact me if you have any further questions or the URL of your websites so that I can send you a sample.